Automatic ice-cream-cone machine



4 Sheets-Sheet 1 J. bENAho AUTOMATIC ICE CREAM CONE MACHINE Filed OCf..-26, 1915 June '10 1924.

INVENTOR WITNESSES:

.lmielo {1924,

=1 J. DENARO Au'roMATic ICE CREAM CONE MACHINE Fild Oct. 26, 4Sheets-Shet 2 June 10 1924.

J. DENARQ AUTOMATIC ICE CREAM GONE MACHINE 4 Sheets-Sheet 5 INVENTORFiled Oct.

WITNESSES:

June 10 1924. Q 1,497,293

J. DENARO AUTOMATIC ICE CREAM CONE MACHINE Filed Oct. P 315 4Sheets-Sheet 4 ifaitented dune W, lig d,

I aaeaaas JAMES DENABO', 0F CAMBRIDGE, MASSACHUSETTS.

AUTOMATIC ICE-CREAIllI-CO-NE BEACHINE.

Application filed October 26, 1915. Serial No. 58,020.,

delivering the cones trimmed and ready for packing.

It is one of the objects of the present invention to greatly simplifythe construction .and operation of the machines of the characterreferred to, and to render such. machines highly automatic in theiroperation with an exceptional degree of reliability and eiticiency. Toobtain this end, I have provided improved means for opening the moldsand raising the cores. in order to discharge the baked cones. I alsohave provided an improved baking oven construction, parts of which servethe double function of slid-ably supporting the dividable female moldunits. I have also obviated the possibility of the cores mutilating thefinished baked cones during the lifting of the cores in the dischargingoperation, and the possibility of scarring the mold sections when theyare moved toward each other to establish the baking position of theparts. To-

wards this end I have provided, as in the preferred embodiment shown, aparallel link suspension of the core carrying arm, and an operatingdevice for this parallel link suspension which is effective between thehub of the machine and the circle of the molding units. A distinctadvantage arising from the use of such mechanism is in the sli ht,comparatively negligible, lateral movement of the cores, particularlythe apices of the cores during the early lifting movement. Nosubstantial lateral movement of the cores takes place until after thecores have been lifted well clear of the baked cones. The arrangement ofthe core carrier operating mechanism between the hub of the frame andthe mold units renders it unnecessary to provide ,a movable filler spoutfor the batter, or to employ the method of dipping the cores in a battertank to coat them a herein shown. If desired, a simple filler spoutcould be arranged across the path of the mold units and ope?- ated bysuitable valve actuating mechanism to discharge batter into the closedmold units at any desired position of the rotatable wheel. I have,however, in the embodiment of the invention herein shown, provided meansfor raising the cores above a dough-pan, then dipping them in the doughand subsequently returning the cores to the mold suitably coated withbatter. 1

I also obtain remarkably high production of cones in a given time. Thisis due, among other things, to the arrangement of actuating means anddevices to produce a simultaneous movement of the molding elements intheir operation of opening to discharge the baked product.

By utilizing two spaced annular plates as main elements of the rotatablewheel or frame, I am able to cause them to serve as a part of the bakingmeans, specifically, an oven, and also, in part at least, as a supportand slideway for the female mold elements. It is understood, of course,that the annular plates referred to are composed of parallel andstraight sided sections arranged successively to take on a generalarcuate characteristic. Between the parallel walls of these sections themolding units are adapted to slide toward and from each othermaintaining always a parallel relationship.

Other objects will be in part obvious and in part pointed outparticularly hereinafter.

The invention accordingly consists in the various features ofconstruction, combinations of elements and arrangements of parts whichwill be exemplified by the construction hereinafter set forth and thescope of the application of which will be indicated by the followingclaims.

Figure 1 is a plan showing a general arrangement of the machine. Figure2 is a view partly in section on line AB in Figure 1. Figure 3 is a planof a portion of the wheel. Figure 4 is a section on line in Figure 1.Figure 5 is an elevation of the track for operating the core frame andis taken on line EF in Figure'Q. Figure 6 is a detached view of thedough pump partly in section. Figure 7 is an end view of the mechanismfor operating the molds. Figure 8 is an enlarged view of thesame showingthe'molds open. Figure 9 is a View showing the pipe connectionsfor thegas burner, and Figure 10 an elevation of the cone trimming mechanism.

Similar figures refer' to similar parts throughout the several views.

1, represents a vertical'shaft free to turn in a bearing 2 on a floorbracket 3, and resting on a thrust bearing 4.

Near the top of shaft .1 is ahub 5 Sup ported by shoulder 6, and made toturn with the shaft 1 by set screw 7.

Threaded into the hub are the radial spokes 8 which hold the plates9'and 10 in p ace with the assistance of the spacer l2 shoulder 11 andnut 13.

- turn with the shaft 1 by set screw 17. 18,

'tions 34 and 35. 42 is a chain, one end of 19 isa is a worm gear keyedto shaft -1.

18 and wormgmeshing with worm gear driven by the shaft 20 which turns insuitable bearings 21, 22, and 23, and derives its ower from a motor 24throughsuitable elting 25, and 26, and speed changing pulleys 27. '28 isa corner support bracket for the frame 29 and braces 30 which are boltedto the hub 31 in which the end of shaft 1 revolves; On the brackets 28is mounted a stud 32 supporting a roller 33 on which the plates 10 ridewhen the structure is revolved. Each mold consists of two halves orsections 34 and 35, the ends of which slide in guides 36 and 37 onplates 9 and 10.

Mounted in a suitable bearing 38 in plate 10 and 39in plate 9, is a camshaft 40 carrying cams 41, acting against mould sec-L whicl1 is fastenedto the mold frame 34, 1

above the cam shaft 40, and the other end is passed around the roller43'on cam 41, and fastened to the mold frame 34 under the cam shaft 40.97 is a segment of a pinion meshing with a rack 98 on bracket 100 whichslides in guides 101 on plate .10. 99

is a roller on stud 102, projecting from.

bracket 100. 103 is an unlocking cam track on frame 104 and 105 is alocking cam track on frame 104.

44 is a core frame carrying cores 45. On frame 44, are the spacedbearing pins 46 disposed in' a vertical line and connected by parallelbars 47 to hearing pins 48 also disposed in a vertical line with thesame spacing. Bearing pins 48 are mounted in a bracket 49 bolted to thehub 5. 50 is anupright bar pivoted at 51 to bar 47 and at 52 to slideplate 53 which slides vertically in guides 54 on plate 9. 55-is a rollermounted V on a stud 56 projecting from plate 53; The

and high enough to pass over the leading edge, down into, then up andover the rear edge ofthe dough pan 58 which is secured to frame 59 bybars 60.

The dough is supplied to the don h an 58 by a pump of which 61 is the cyin er; 62 is a piston; 63 a piston rod, and 64 another piston movable onrod 63. 4 65 is a spring acting to hold. piston 64 against the adjustingnut 66, adjustably mounted upon the threaded end -67 of rod 63. 68 is aspring to hold piston 62 out. 69 is a lever: arm acting on roller 70which is mounted in the end of piston 62 on a pin 71, toforce the pistonin. 72 is-a pin projecting from plate 10 for engaging the lever 69 onthe pump. The pump cylinder is securely fastened to plate 136 on bars60. 73 is an inlet port and is connected to the dough supply tank 74 bya flexible hose 75. 76 is an outlet port co-dough pan 58. ,77 are gaspipes with spaced holes to form burners for heating the oven above themoulds, which oven has for its sides plates 9 and 10, and top plate 78which is suitably lined on the inside with asbestos. The pipes 77 aresecured to the top plate 78 with straps 79. i

' A portion of the top plate '80 is hinged at 81 and carries rails-82which bear on the core frame 44, tending to press the core frame verytightly on the mould frame. The desired pressure is obtained by springs83 between the top of hinged plate 80 and frame brace 30. The oven below.the moulds has gas pipe burners 84 supplied with gas through pipes 85,86, and 87, and controlled by valve 88. Pipes 89, 90, and 91 supply theupper-oven. Air is forced into the pipe system by a blower 92 throughpipe 93, the

blower being driven by shaft 20 through pulleys 94 and 95 and belt 96. vj

106 is a chute on which the cones drop when the moulds open, the conessliding down this chute, and into the holes 107 in plate 108. Thetrimmer 109 is conical shaped, with a greater angle than the pastry coneto impinge the edge of the hole 107 and trim the cone to the size of thehole. The cones drop through on to the conveyor 110 and are carried tothe packing table, while the trimmings slide down on the upper side ofthe plate 108 to conveyor 111 and are carried to a waste receptacle.

The trimmer 109 is mounted'on shaft 112 which turns in bearing 113 onframe 114 and is operated by arm 115 against which the projecting pin116on plate 9 acts to turn the trimmer into the holes 107, thetrimmerbeing thrown back by the spring 117 which is fastened to frame 114 andto arm 118. The chute 106 and plate 108 are suitably fastened to theframe 114.

The conveyor 110is driven from the shaft 20 through pulle 119, belt 120,pulley 121, and shaft 122. he conveyor 111 is driven 'ment with theworm.

During the operation of the machine the roller 55 rides up on the track57 and is raised slightly as shown at GFigure 5. The roller 55, beingconnected to the core frame 44: through the stud 56, plate 53, the

arm 50, the pin 51, bars 47, pins 16 and 48, when the roller -is raisedto the level G, the cores are free from the cones, and at this point themoulds are timed to open and let the cones drop. As the wheel continuesto revolve the roller 5o runs up to the level H, which brings the coreshigh enough to pass over the edge of thedough pan 58, and

' from that level the roller drops to level as indicated at I, whichbrings the cores into the dough to the required depth. The cores beinghot, sufi'icient dough adheres evenly to form a cone. Vhen the roller isat the level J, the cores are over and above the edge of the dough pan,and so that they come down outside of the latter, and into the moulds,and in this position pass into the oven, the dough pan being wide enoughto allow of this operation without stopping the wheel. core frame 44slides under the track or runner 82 which are attached to the hingedplate 80 and which in turnis held down by springs 83, and thus the coresare pressed down very firmly in the proper position in the moulds'for asufficient time to allow the dough to become firm or hardened by theheat, after which the weight of the core frame and cores are all that isrequired to keep the cores in position.

It will be seen that the core frame is in a horizontal position at alltimes, although swinging on the arc of the parallel bars 47, theadvantage of this is that all the cores will be dipped in the dough tothe same depth, and will always be in "a vertical position in themoulds, even if some of the mould frames should be on different levels.Also, they are maintained vertical while being moved into and out of themolds, so that the points of the cores do not engage the sides of themold cavities. The cores are freed from the cooked cones by a movementthat. is substantially axial of the core and mold cavity, thus avoidinginjury to the cones.

f The moulds are caused to open by the ar- As the moulds enter the oventherangement of cam tracks shown in the detached view Figure 7. its themould wheel revolves the roller 99 runs up on the track 103 and carrieswith it the bracket 100 on which are rack teeth 98 meshing with thesegments of pinions 9T keyed to the shafts 40 which turn in bearings 38and 39 in the plates 9 and 10, andhave cams l1 thereon for closing andholding the two half mould sections and 35 together, and chains 42 androllers 43 which act to separate the moulds as the bracket is raised bythe track 103. The track is of sulhcient length to hold the moulds openlong enough to let the cones drop out, and when the roller 99 comes incontact with the track105 the bracket is forced down, turning the camsagainst the mould halves until the latter are tight together and thecams are on a dead center, thus holding the parts in that position withthe weight of the bracket also tending to hold them in position. hen thecam shaft is turned in the opposite direction the rollers 43 on the endof the cam pull on the chain a2 and open the moulds.

The dough pump is gauged to supply the amount of dough taken out by eachdipping of the cores, and is actuated by a projecting pin 72 on plate 10coming in contact with lever 69 pivoted on plate 136, said lever actingagainst the roller 70 to force in the piston 62. The dough is fed intothe pump through inlet 73 and tube 75 from tank 7 1, and fills the spacebetween the piston 2 and piston 64, which space is maintained by thespring on rod (53, and is adjusted by the nut 66 which has threadmeshing with thread 67 on rod (33. The piston 64 being free to slide onthe rod 63, when the piston is forced in, the amount of dough in thespace between 1 the two pistons is carried to the outlet 76,

and the piston-'64 comes to a stop in the end of the cylinder just afterpassing the outlet 76, but the piston 62 continues to travel andcompresses the spring .65 until the two pistons are together, thusforcing the dough out of the space. The piston 62 is returned foranother charge by the action of spring 68. The cylinder 61 is fastenedto the plate 136, by suitable straps 137.,

The trimming mechanism is timed to. operate just after the cones dropinto the holes 107, in the plate 108, which latter is attached to theframe 114 at a right angle to the chute-e106, with the center of eachhole 107 on a line with its chute, so that the cone will drop into itreadily. The trimmer being up out of the way when the cone drops, swingsdown when the pin on plate 9 comes in contact with arm 115, centers thecone, and trims the edges.

The forms of construction which have been particularly illustrated anddescribed admit of minor changes and modifications, therefore the rightis reserved to such changes and modifications that do not depart fromthe spirit and scope of the invention which-is defined in the appendedclaims 1. In a machine of the class described, a wheel structureconsisting of a vertical shaft driven continuously by a motor throughsuitable gearing, a hub on said shaft with radial spokes in combinationwith an outer vertical plate, an inner vertical plate, said outer andinner plates forming the sides of a circular oven the said inner plateheld against a shoulder on said radial spoke, and said outer plate heldagainst a spacer on said radial spoke between said inner plate and saidouter plate by a nut on said radial spoke bearing against the outside ofsaid outer plate, said radial spokes being on the radial joining linebetween one set of inner and outer plates and the adjoining set of innerand outer plates, horizontal guides on said plates on which slide twohalf mould sections in the space between the inner plate and the outerplate, and at a tangent to a line from the center of said hub throughthe center of the space between said radial spokes, a cam shaft on eachside of said half mould section with a cam acting to force said halfmould sections together to form a complete mould section, and a rolleron said cam acting on a chain both ends of which are fastened to thesaid half mould section, with the loop OVGl the said cam shaft toseparate said mould sections, and means for turning said cam shaft toopen and, close said mould sections at a certain point in the revolutionof the wheel structure;

2. In a machine of the class described, a movable carrier having mountedthereon a moulding device. consisting of two half mould sections slidingon horizontal guides to allow of said mould sections being moved to joinor separate with a parallel motion of said mould sections, a shaftmounted in bearings parallel with each of said mould sec-. tions, camson said shafts acting to force said half mould sections together to forma completemould section, rollers on said cams, a chain looped over eachof said rollers, with one end fastened to said mould section above saidshaft, and the other end fastened to said mould section below the saidshaft and acting to separate the said mould sections, a pinion on eachof said shafts, a bracket with racks meshing with said pinions, verticalguides for said bracket, a projecting roller on said bracket engaging acam track to lower and raise said bracket, substantially as described,and for the purpose set forth.

8. In a machine of the class described, a rotatable wheel structureembodying a circular oven in combination with a circular plate formingthe top of said oven, said circular plate having a portion cut away, to

.allow for charging'and discharging the said oven, a free end portion ofsaid circular plate being hinged at the point where the charged mouldsenter the oven, molds adapted to enter said ovens, a' frame carryingcores co-operating with said molds, cam rails attached to the under sideof said hinged portion, said rails bearing on the frame carrying coresfor said mould, springs pressingon said hinged portion between the upperside of said hinged portion and a top frame brace, substantially asdescribed, and for the purpose set forth.

at. In a machine of the class described, a

plurality of mold sections,-a plurality of core sections eachco-operating with a mold section and movable in axial alignmenttherewith, a movable carrier on which said mold sections and coresections are mounted, a dough pan in vertical axial alignment with saidmold and core sections during the charging period, means for rotatingsaid mold and core sections, means for immersing said core sections insaid dough pan and subsequently inserting them in said molds.

5. In a machine of the class described,

molding devices including a pair of two part mold sections having aplurality of mold faces and a core for each mounted upon a core carrier,a movable carrier on which said molding devices are mounted,

means for opening and closing said mold sections to discharge thefinished product therefrom, means to operate the core carrier to raiseand lower the cores relative to the molds and means for applying acoating of batter to the cores while they are raised from the molds.

6. In a machine of the class described, molding devices including a pairof two part mold sections having a plurality of mold cavities and a corefor each mounted upon a core carrier, a movable carrier on which saidmolding devices are mounted, means for opening and closing said moldsections to discharge the finished product therefrom, means to operatethe core carrier to move the cores axially of the molds and means forapplying a coating of batter to said, cores while aligned verticallywith said molds.

7. In a machine of the class described, a rotatable mold section, a coresection therefor in axial alignmenttherewith, a dough pan in verticalaxial alignment with said mold and core-sections during the period ofcoating the core with batter, means for imparting relative movementbetween said core section and said dough pan, means for dischargingformed cones from said mold section and a rotatable carrier on whichsaid mold and core sections are mounted.

8. In a machine of the class described, a rotatable mold section, a coresection therefor in axial alignment therewith, a dough pan in verticalaxial alignment with said mold and core sections during the period ofthe former in the batter in said dough pan to coat the core therewith,means for releasing formed cones from said mold sections, means adjacentwith said mold sec-.

tions to receive said cones and trim therefrom surplus material and arotatable carrier on which said mold and core sections are mounted.

9. In a machine of the class described," a rotating mold section, a coresection co-oper- ,ating therewith and in axial alignment thereto, adough pan in axial alignment with said mold and core sections at times,mechanism adapted to impart relative movement of said core section tosaid mold section and in axial alignment therewith and at times toimmerse the core section in said dough pan and a rotatable carrier onwhich said mold and core sections are mounted.

10. In a machine of the class described, a rotating mold section, a coresection co-op crating therewith in axial alignment thereto, a dough panin vertical axial alignment with said mold and core sections during theperiod of coating the core with batter, mechanism adapted to impartrelative movement of said core section to said mold section in axialalignment therewith and to immerse the core section in said dough panwhen vertically thereover, means for discharging the formed cone fromsaid moldsection and a rotatable carrier on which said mold and coresections are mounted.

11. In a machine of the class described,

a rotating mold section, a core section 00- operating therewith in axialalignment thereto,'a dough pan in vertical axial alignment with saidmold andcore sections during the period of-coating the core with batter,mechanism adapted to impart relative movement of said core sections tosaid mold section in substantially axial alignment therewith and toimmerse the core section in said dough pan, means for discharging formedcones from-said mold section, a rotatable carrier on which said mold andcore sections are mounted and trimming means in circumferentialalignment with said mold sections and adapted to receive the dischargedcones and trim therefrom all surplus material.

12. In a machine of the class described, comprising a plurality of moldsections. core sections for each of said mold sections and movable insubstantially vertical alignment therewith, a rotatable carrier on whichsaid mold and core sections are mounted, mechanisms for impartingrelatively vertical movement between the said mold sections and coresections, a dough pan within the path of rotation of and in verticalalignment with said core and mold sections, means for imparting relativemovement between said dough pan and said core sections to immerse thelatter within the former to coat the core sections with batter andreturn the same to the moldsections.

13. In a machine of the class described, a plurality of two part moldsections and core sections therefor, a carrier for said sectionsrotating within a horizontal plane, a dough pan in vertical axialalignment thereto within the plane of rotation of the mold sections andthe core sections, mechanism adapted to impart movement of the said coresection relative to the mold sections and to impart-relative movementbetween the core sections and the said dough pan, and means forseparating said two part mold sections to permit the molded cone todischarge therefrom.

14. In a machine of the class described, a plurality of two part moldsections and core sections therefor, a carrier for said sectionsrotating within. a horizontal plane, a dough pan in vertical axialalignment thereto, mechanism adapted to impart relative movement betweenthe core sections and said dough pan, means for separating said two partmold sections to permit themolded cone to discharge therefrom, andtrimming means to trim surplus material from tini'shed cones.

15. In a pastry baking machine, a horizontally rotatable wheel carryinga plurality of divided female molds and a plurality of male cores,cooperating respectively with the female molds, and means for eifectinga separation of the female molds and a lifting of the male coressubstantially simultaneously-said means comprising a parallel and lowerspaced links and each group 'being attached to the core memberof eachset.

17. In a pastry baking machine, a horizontally rotatable wheel carryinga plurality of sets of divided molds and cooperative core members, aplurality of radially extending links pivoted to the hub of the saidrotatable wheel and grouped in parallel pairs, each pair comprisingupper and lower spaced links and each group being attached to the coremember of each set, and means intermediate the hub of the wheel and thecore members for governing the movement of the parallel links.

18. In a pastry baking machine, a horizontally rotatable wheel havingslidably mounted thereon, betweenvertical, inner and outer walls, aplurality of molds provided with molding cavities, a plurality of coremembers, the cores of which are adapted to cooperate with the moldingcavities, and

a fixed top plate enclosing the said molds and core members during themajor part adaptedto serve as slideways for the said mold sections.

20. In a pastry baking machine, a horizontally rotatable structurecomprising a hub with radially extending means supporting inner andouter spaced vertical walls, and a plurality of molding sets supportedby said structure, each set comprising a pair of half mold sections anda core; the mold sections being arranged to open and close by sliding inguideways formed in the spaced Walls.

21. In'a pastry baking machine, a horizontally rotatable structurecomprising a hub with radially extending means supporting inner andouter spaced vertical Walls, a plurality of molding sets supported bysaid structure, each set comprising a pair of half mold sections and acore; the mold sections being arranged to open and close by sliding inguideways formed in the spaced walls, and the core being connected tothe hub by means of a parallel link mechanism. i

22. In a pastry baking machine, a horizontally rotatable structurecomprising a hub With radially extending means supporting inner andouter.:spaced vertical walls,

a plurality'of molding'sets supported by said structure, each setcomprising'a pair sections being arranged to open and close' by slidingin guideways formed in the spaced Walls, the core being connected to thehub by means of a parallel link mechanism, and a stationary top coverplate under which the said' structure rotates to formwith the verticalWalls a main baking chamber for the molding sets.

24. In a pastry baking machine, a female mold unitcomprising two halfmold sections located between vertical, spaced plates and slidablymounted in horizontal guideways therein, whereby the said mold sectionsare permitted to move in order to join or separate, and means locatedbetween the said vertical, spaced plates adapted to hold.

said mold sections in closed position whereby tendency of the moldsections to separate under pressure of generated steam or gas ispositively resisted.

JAMES DENARO.

Witnesses:

J. H. MORGAN, CHAS. N. WALTER.

